Speed, Velocity, and Acceleration

What is the formula to calculate speed?

• Speed = Distance / Time

• Speed = Time / Distance

• Speed = Distance + Time

If a car travels 300 km in 3 hours, what is its average speed?

• 100 km/h

• 900 km/h

• 300 km/h

• 1 km/h

What does a flat horizontal line on a distance-time graph represent?

• Constant speed

• Increasing speed

• Decreasing speed

• The object is not moving

Tags

NGSS.MS-PS3-1

On a speed-time graph, what does a line sloping upwards from left to right indicate?

• The object is moving at a constant speed

• The object is accelerating

• The object is decelerating

• The object is stationary

Tags

NGSS.MS-PS3-1

What is the formula for calculating momentum?

• Momentum = Mass / Velocity

• Momentum = Velocity / Mass

• Momentum = Mass + Velocity

What is the unit of momentum?

• Newton (N)

• Kilogram meter per second (kg m/s)

• Joule (J)

Tags

NGSS.HS-PS2-2

What is acceleration?

• The rate of change of velocity per unit time

• The rate of change of distance per unit time

• The rate of change of speed per unit distance

• The rate of change of time per unit velocity

Tags

NGSS.HS-PS2-1

If a vehicle increases its velocity from 20 m/s to 40 m/s in 5 seconds, what is its acceleration?

What does displacement measure?

• The total path length traveled by an object

• The shortest path between the starting and ending points

• The time it takes for an object to travel a certain distance

• The speed of an object in a given direction

A runner completes a 400m track in a circular path and ends up at the starting point. What is the displacement of the runner?

• 400 m

• 0 m

• 200 m

• 100 m